Need Your Auction Advice

So I’m in a new dynasty league that is going to draft auction style. I love the auction draft because it allows everyone a shot at the players they want. However, since this a dynasty league the roster size has been increased to 20 (1 QB, 2RB, 2 WR, 2 Flex (RB, WR, or TE), 1 K, 1 DEF, 10 BENCH) and the budget has gone up from $200 to $300. The league is PPR. I was curious if anyone had any ideas as to how to adjust the prices for all players and any other strategies they would implement.

Does your league require you to fill out an entire roster by end of the draft? i…e including all bench spots?

I am assuming so, waiting for confirmation on that.